/* * Copyright (c) 2024 Zhao Zhili * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "libavutil/aarch64/asm.S" .macro alf_luma_filter_pixel index, pix_size, addr1, addr2, offset1, offset2 .if \pix_size == 1 ldur d3, [\addr1, #\offset1] ldur d4, [\addr2, #\offset2] uxtl v6.8h, v3.8b uxtl v7.8h, v4.8b .else ldur q6, [\addr1, #(2*\offset1)] ldur q7, [\addr2, #(2*\offset2)] .endif .if \index < 8 dup v17.4h, v0.h[\index] // clip dup v18.4h, v16.h[\index] // -clip dup v19.4h, v1.h[\index] // filter dup v26.4h, v22.h[\index] // clip dup v27.4h, v23.h[\index] // -clip dup v28.4h, v24.h[\index] // filter .else dup v17.4h, v0.h[\index - 8] // clip dup v18.4h, v16.h[\index - 8] // -clip dup v19.4h, v1.h[\index - 8] // filter dup v26.4h, v22.h[\index - 8] // clip dup v27.4h, v23.h[\index - 8] // -clip dup v28.4h, v24.h[\index - 8] // filter .endif ins v17.d[1], v26.d[0] ins v18.d[1], v27.d[0] ins v19.d[1], v28.d[0] sub v6.8h, v6.8h, v5.8h sub v7.8h, v7.8h, v5.8h smin v6.8h, v6.8h, v17.8h smin v7.8h, v7.8h, v17.8h smax v6.8h, v6.8h, v18.8h smax v7.8h, v7.8h, v18.8h add v6.8h, v6.8h, v7.8h smlal v20.4s, v19.4h, v6.4h // v20: sum smlal2 v21.4s, v19.8h, v6.8h // v21: sum .endm /* x0: dst * x1: pp * x2: filter * x3: clip * w4: is_near_vb * w5: pix_max */ .macro alf_filter_luma_kernel, pix_size dst .req x0 pp .req x1 filter .req x2 clip .req x3 is_near_vb .req w4 pix_max .req w5 .if \pix_size > 1 dup v25.8h, pix_max // pix_max .endif ldr q0, [clip] // clip ldr q1, [filter] // filter ldur q22, [clip, #24] // clip ldur q24, [filter, #24] // filter ldr x5, [pp] // x5: p0 ldr x6, [pp, #(5*8)] // x6: p5 ldr x7, [pp, #(6*8)] // x7: p6 neg v16.8h, v0.8h // -clip neg v23.8h, v22.8h // -clip .if \pix_size == 1 ldr d2, [x5] // curr .else ldr q5, [x5] // curr .endif movi v20.4s, #64 cbz is_near_vb, 1f shl v20.4s, v20.4s, #3 1: .if \pix_size == 1 uxtl v5.8h, v2.8b .endif mov v21.16b, v20.16b ldr x8, [pp, #(3*8)] // p3 ldr x9, [pp, #(4*8)] // p4 alf_luma_filter_pixel 0, \pix_size, x6, x7, 0, 0 ldr x6, [pp, #(1*8)] // p1 ldr x7, [pp, #(2*8)] // p2 alf_luma_filter_pixel 1, \pix_size, x8, x9, 1, -1 alf_luma_filter_pixel 2, \pix_size, x8, x9, 0, 0 alf_luma_filter_pixel 3, \pix_size, x8, x9, -1, 1 alf_luma_filter_pixel 4, \pix_size, x6, x7, 2, -2 alf_luma_filter_pixel 5, \pix_size, x6, x7, 1, -1 alf_luma_filter_pixel 6, \pix_size, x6, x7, 0, 0 alf_luma_filter_pixel 7, \pix_size, x6, x7, -1, 1 ldr d0, [clip, #16] // clip ldr d1, [filter, #16] // filter neg v16.4h, v0.4h // -clip ldr d22, [clip, #40] // clip ldr d24, [filter, #40] // filter neg v23.4h, v22.4h // -clip alf_luma_filter_pixel 8, \pix_size, x6, x7, -2, 2 alf_luma_filter_pixel 9, \pix_size, x5, x5, 3, -3 alf_luma_filter_pixel 10, \pix_size, x5, x5, 2, -2 alf_luma_filter_pixel 11, \pix_size, x5, x5, 1, -1 cbz is_near_vb, 2f sshr v20.4s, v20.4s, #10 sshr v21.4s, v21.4s, #10 b 3f 2: sshr v20.4s, v20.4s, #7 sshr v21.4s, v21.4s, #7 3: uxtl v22.4s, v5.4h uxtl2 v23.4s, v5.8h add v20.4s, v20.4s, v22.4s add v21.4s, v21.4s, v23.4s sqxtun v20.4h, v20.4s sqxtun2 v20.8h, v21.4s .if \pix_size == 1 sqxtun v20.8b, v20.8h str d20, [dst] .else umin v20.8h, v20.8h, v25.8h str q20, [dst] .endif ret .unreq dst .unreq pp .unreq filter .unreq clip .unreq is_near_vb .unreq pix_max .endm .macro alf_chroma_filter_pixel index, pix_size, addr1, addr2, offset1, offset2 .if \pix_size == 1 ldur s3, [\addr1, #\offset1] ldur s4, [\addr2, #\offset2] uxtl v6.8h, v3.8b uxtl v7.8h, v4.8b .else ldur d6, [\addr1, #(2*\offset1)] ldur d7, [\addr2, #(2*\offset2)] .endif .if \index < 8 dup v17.4h, v0.h[\index] // v17: clip[0] dup v18.4h, v16.h[\index] // v18: -clip[0] dup v19.4h, v1.h[\index] // v19: filter[0] .else dup v17.4h, v0.h[\index - 8] // v17: clip[0] dup v18.4h, v16.h[\index - 8] // v18: -clip[0] dup v19.4h, v1.h[\index - 8] // v19: filter[0] .endif sub v6.4h, v6.4h, v5.4h sub v7.4h, v7.4h, v5.4h smin v6.4h, v6.4h, v17.4h smin v7.4h, v7.4h, v17.4h smax v6.4h, v6.4h, v18.4h smax v7.4h, v7.4h, v18.4h add v6.4h, v6.4h, v7.4h smlal v20.4s, v19.4h, v6.4h // v20: sum .endm /* x0: dst * x1: pp * x2: filter * x3: clip * w4: is_near_vb * w5: pix_max */ .macro alf_filter_chroma_kernel, pix_size dst .req x0 pp .req x1 filter .req x2 clip .req x3 is_near_vb .req w4 pix_max .req w5 .if \pix_size > 1 dup v25.4h, pix_max // pix_max .endif ldr q0, [clip] // clip ldr q1, [filter] // filter ldr x5, [pp] // p0 ldr x6, [pp, #(3*8)] // p3 ldr x7, [pp, #(4*8)] // p4 neg v16.8h, v0.8h // -clip .if \pix_size == 1 ldr s2, [x5] // curr .else ldr d5, [x5] // curr .endif movi v20.4s, #64 cbz is_near_vb, 1f shl v20.4s, v20.4s, #3 1: .if \pix_size == 1 uxtl v5.8h, v2.8b .endif ldr x8, [pp, #(1*8)] // p1 ldr x9, [pp, #(2*8)] // p2 alf_chroma_filter_pixel 0, \pix_size, x6, x7, 0, 0 alf_chroma_filter_pixel 1, \pix_size, x8, x9, 1, -1 alf_chroma_filter_pixel 2, \pix_size, x8, x9, 0, 0 alf_chroma_filter_pixel 3, \pix_size, x8, x9, -1, 1 alf_chroma_filter_pixel 4, \pix_size, x5, x5, 2, -2 alf_chroma_filter_pixel 5, \pix_size, x5, x5, 1, -1 uxtl v22.4s, v5.4h cbz is_near_vb, 2f sshr v20.4s, v20.4s, #10 b 3f 2: sshr v20.4s, v20.4s, #7 3: add v20.4s, v20.4s, v22.4s sqxtun v20.4h, v20.4s .if \pix_size == 1 sqxtun v20.8b, v20.8h str s20, [dst] .else umin v20.4h, v20.4h, v25.4h str d20, [dst] .endif ret .unreq dst .unreq pp .unreq filter .unreq clip .unreq is_near_vb .unreq pix_max .endm function ff_alf_filter_luma_kernel_8_neon, export=1 alf_filter_luma_kernel 1 endfunc function ff_alf_filter_luma_kernel_12_neon, export=1 mov w5, #4095 b 1f endfunc function ff_alf_filter_luma_kernel_10_neon, export=1 mov w5, #1023 1: alf_filter_luma_kernel 2 endfunc function ff_alf_filter_chroma_kernel_8_neon, export=1 alf_filter_chroma_kernel 1 endfunc function ff_alf_filter_chroma_kernel_12_neon, export=1 mov w5, #4095 b 1f endfunc function ff_alf_filter_chroma_kernel_10_neon, export=1 mov w5, #1023 1: alf_filter_chroma_kernel 2 endfunc